examples/ping_pong_ns/rift/mano/examples/ping_set_rate.py

   1 #!/usr/bin/env python3
   2
   3 ############################################################################
   4 # Copyright 2016 RIFT.IO Inc                                               #
   5 #                                                                          #
   6 # Licensed under the Apache License, Version 2.0 (the "License");          #
   7 # you may not use this file except in compliance with the License.         #
   8 # You may obtain a copy of the License at                                  #
   9 #                                                                          #
  10 #     http://www.apache.org/licenses/LICENSE-2.0                           #
  11 #                                                                          #
  12 # Unless required by applicable law or agreed to in writing, software      #
  13 # distributed under the License is distributed on an "AS IS" BASIS,        #
  14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
  15 # See the License for the specific language governing permissions and      #
  16 # limitations under the License.                                           #
  17 ############################################################################
  18
  19
  20 import argparse
  21 import logging
  22 import os
  23 import subprocess
  24 import sys
  25 import time
  26
  27 import yaml
  28
  29
  30 def ping_set_rate(yaml_cfg, logger):
  31     '''Use curl and set traffic rate on ping vnf'''
  32
  33     def set_rate(mgmt_ip, port, rate):
  34         curl_cmd = '''curl -D /dev/stdout \
  35     -H "Accept: application/json" \
  36     -H "Content-Type: application/json" \
  37     -X POST \
  38     -d "{{ \\"rate\\":{ping_rate} }}" \
  39     http://{ping_mgmt_ip}:{ping_mgmt_port}/api/v1/ping/rate
  40 '''.format(ping_mgmt_ip=mgmt_ip,
  41            ping_mgmt_port=port,
  42            ping_rate=rate)
  43
  44         logger.debug("Executing cmd: %s", curl_cmd)
  45         subprocess.check_call(curl_cmd, shell=True)
  46
  47     # Get the ping rate
  48     rate = yaml_cfg['parameter']['rate']
  49
  50     # Set ping rate
  51     for index, vnfr in yaml_cfg['vnfr'].items():
  52         logger.debug("VNFR {}: {}".format(index, vnfr))
  53
  54         # Check if it is pong vnf
  55         if 'ping_vnfd' in vnfr['name']:
  56             port = 18888
  57             set_rate(vnfr['mgmt_ip_address'], port, rate)
  58             break
  59
  60 def main(argv=sys.argv[1:]):
  61     try:
  62         parser = argparse.ArgumentParser()
  63         parser.add_argument("yaml_cfg_file", type=argparse.FileType('r'))
  64         parser.add_argument("-q", "--quiet", dest="verbose", action="store_false")
  65         args = parser.parse_args()
  66
  67         run_dir = os.path.join(os.environ['RIFT_INSTALL'], "var/run/rift")
  68         if not os.path.exists(run_dir):
  69             os.makedirs(run_dir)
  70         log_file = "{}/ping_set_rate-{}.log".format(run_dir, time.strftime("%Y%m%d%H%M%S"))
  71         logging.basicConfig(filename=log_file, level=logging.DEBUG)
  72         logger = logging.getLogger()
  73
  74     except Exception as e:
  75         print("Exception in {}: {}".format(__file__, e))
  76         sys.exit(1)
  77
  78     try:
  79         ch = logging.StreamHandler()
  80         if args.verbose:
  81             ch.setLevel(logging.DEBUG)
  82         else:
  83             ch.setLevel(logging.INFO)
  84
  85         # create formatter and add it to the handlers
  86         formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
  87         ch.setFormatter(formatter)
  88         logger.addHandler(ch)
  89
  90     except Exception as e:
  91         logger.exception(e)
  92         raise e
  93
  94     try:
  95         yaml_str = args.yaml_cfg_file.read()
  96         # logger.debug("Input YAML file:\n{}".format(yaml_str))
  97         yaml_cfg = yaml.load(yaml_str)
  98         logger.debug("Input YAML: {}".format(yaml_cfg))
  99
 100         ping_set_rate(yaml_cfg, logger)
 101
 102     except Exception as e:
 103         logger.exception(e)
 104         raise e
 105
 106 if __name__ == "__main__":
 107     main()